The weighted-mean tag has no wiki summary.
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Confusion regarding weighted average
This is a pretty simple question and I'm wondering how to go about finding a solution. I have the following data.
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1answer
35 views
Given weighted mean and raw data, derive weights to minimize error
Imagine I have a set of data from an experiment:
Observed Measurement 1: 5
Observed Measurement 2: 6
Observed Measurement 3: 7
Observed Measurement 4: 8
Observed Measurement 5: 9
I have a target ...
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1answer
48 views
Computing lowess mean value
I am trying to reimplement lowess algorithm in java. I read in the matlab page explaining the lowess with the follwing steps:
Compute the regression weights for each data point in the span.
A ...
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Estimated Treatment Effect in the full sample is not between the estimates of the stratified samples?
I am estimating the relationship between students' math scores and using a supplemental math software. I've adjusted for some demographic variables in the model. In my first model, I use the full ...
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How to symmetrically adjust data by removing certain value
Say I have a data set in the following format:
{a:200, b: 100; c:400}
The sum of a, b and c equals 700. Now, I have another value which is supposed to be the actual total say 500.
How do I adjust ...
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0answers
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Hypothesis test for difference between domain means with weighted data
I have a large dataset that is weighted due to:
probability proportional to size sampling, &
disproportionate stratification.
I would like to compare the means for two different domains ...
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61 views
Weighted Variance, one more time
Unbiased weighted variance was already addressed here and elsewhere but there still seems to be a surprising amount of confusion. There appears to be a consensus toward the formula presented in the ...
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64 views
Best fit of weighted mean?
The title might be somewhat misleading. I am trying to solve the following optimization problem and do not find any clues. Can any one help?
I have a sequence of $n$ observation $s_i$. Each ...
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123 views
Weighted mean of grouped data and variance
I have a population that can be divided into two groups, A and B. For each group I have two measurements - mean body mass (+/- SD) and survival (95% confidence intervals).
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72 views
Is it possible to map observed responses on five-point Likert scale into three-class conceptual model?
I am currently making my thesis proposal about employees productivity and I had a questionnaire which consists of a five-point Likert scale (5-strongly agree, 4-agree, 3-agree, 2-disagree, and ...
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63 views
Weighting datapoints by uncertainty - asymmetric CIs
I have several estimates obtained using different softwares, these programs give me an estimate as well as a 95% confidence interval. However, these CIs are not symmetric around my point estimates, ...
